prodrome 发表于 2025-3-25 12:17:28
Harlan A. Pinto,Charlotte Jacobs of cells undergoing division within the cell population gradually declines (Phase III) and the culture is lost or transforms to a cell line which can be propagated indefinitely. This phenomenon has been described for cell cultures derived from human, mouse, chick, rat kangaroo, rabbit, and tortoise tissues.相符 发表于 2025-3-25 18:32:25
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Hydrocortisone as a Modulator of Cell Division and Population Life Span,ase in the specific activity of these enzymes during cellular aging (1). Since these enzymes are typically marker enzymes for lysosomes, the findings implied that older cells contained more lysosomes, a conclusion that has since been documented by electron microscopic studies in our lab and by others (2–4).Judicious 发表于 2025-3-26 06:33:28
Function of Cardiac Muscle in Aging Rat,t. I would like to acknowledge the encouragement and critical comment of Dr. Nathan Shock and the efforts of Dr. Edward Lakatta and Dr. Gary Gerstenblith in designing and performing the more recent studies.embolus 发表于 2025-3-26 09:36:36
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The Survival of Haploid and Diploid Vertebrate Cells after Treatment with Mutagens,ates in bacteria, therefore, the proportion of diploid cells which survive mutagen treatment should be at least 10. times that of haploid cells. A haploid-diploid comparison should, in fact, be a test for the mutagenic nature of a compound.